So...
your new sale is listed as:
Hash Sale - only $0.59 per/GH!
sounds ok but...
"Hosting fee of $0.10 per Gh per month will be deducted from earnings. "

? Really?

Seriously? CH, quit the false advertising. $0.59 + ($0.10 * 12 months) = $1.79 per GH.
Update your price for new contracts to $1.79, and quit charging the $0.10 fee. You'll come out ahead that way, because you'll get all the fees up front, rather than having your fees exceed your customer's income.